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The Essentials of Essential Fatty Acids
Introduction
Increasingly over the past few decades research is showing that supplementing your diet
with essential fatty acids (EFAs) can keep you out of harms way, help deal with certain
diseases, provide a foundation for optimal health, and improve body composition, and
mental and physical performance.1,2,3,4 ,5 ,6 ,7 ,8 ,9 ,10 ,11
As well, some other fatty acids and companion compounds have also been shown to have
significant effects on health and body composition and can work additively or even
synergistically with the essential fatty acids.
Dietary Fats
Dietary fats are essential for normal
metabolism and good health. Not only
are they necessary for the proper
absorption, transportation and
function of the fat-soluble vitamins A,
D, E, and K, fats are used by the body
to produce cellular components,
hormones and other compounds that
are essential to the proper functioning
of the body. As well, a moderate
intake of fat is essential for
maximizing body composition and
decreasing body fat.
But while all fats, including saturated
fatty acids, have an important role in
energy metabolism and body
functions, the most important fats are
the essential fatty acids (EFAs) since
the body needs them to survive.
While the human body can manufacture most of the fats it needs from other fats,
carbohydrates and protein, including cholesterol, saturated fatty acids and unsaturated
fatty acids, there are two groups of fatty acids, called essential fatty acids, based on
linoleic acid (omega 6 group – which includes GLA) and alpha-linolenic acid (omega 3
group which includes EPA and DHA), which cannot be manufactured in the body.
The body cannot make an omega-3 or omega-6 fatty acid because human metabolism
cannot add a double-bond to a fatty acid that is more than 9 carbons away from the delta
end. For the same reason, the body cannot interconvert omega-3 and omega-6 fatty acids.
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Unfortunately, for various reasons, many people are EFA challenged.
EFA Deficiency
Why are EFAs, especially the omega-3s, deficient in modern diets? Part of the problem is
the food that’s given to livestock and poultry. It’s a lot different from the natural food that
these animals would normally consume in the wild or even in the past.
So while both omega-3 (alpha-linolenic acid) and omega-6 (linoleic acid) are plentiful in the
leafy plants consumed by roaming animals, providing nearly equal ratios of these EFAs,
that’s no longer the case when they’re switched from grass to grains. The result is that the
fat in wild game and grazing ruminant contains roughly seven times more omega-3 fatty
acids than animals raised for commercial meat.
Another reason is that processing or cooking changes healthy EFAs into unhealthy trans-
fatty acids. So the meat and eggs that we consume today that’s already low in omega-3s is
even more depleted once it reaches our tables.
As well, we consume a lot of vegetable oils most of which are rich in omega-6 fatty acids
and poor in the omega-3s.
The increased omega-6/omega-3 ratio common to our modern diets, but not to man during
most of his existence, can give rise to disturbances in cellular structure and function, and
an increase in systemic inflammation, which can lead to dysfunction and disease.
So although you can get the EFAs you need from food, you have to know what you’re
doing and what you’re eating (and perhaps more importantly what you’re eating was
eating), and even then, although you’re trying to eat right, you likely will still need to
supplement your diet with some of the essential fatty acids.
The Secrets of EFAs: How the Omegas Work
Alpha linolenic acid is the principal essential fatty acid in the omega-3 family and linoleic
acid takes the lead in the omega-6 series. In a healthy body with sound nutrition, various
metabolic conversions take place transferring the raw dietary materials into usable,
biologically potent EFAs and other compounds.
Alpha linolenic acid is transformed into eicosapentaenoic acid (EPA) and later into
docosahexaenoic acid (DHA). The series three prostaglandins are formed from EPA. As
well, EPA reduces the production of the bad prostaglandins from arachidonic acid.
The omega-6 linoleic acid converts to gamma linolenic acid (GLA). Both the EPA and the
GLA synthesized from dietary sources undergo another conversion, resulting in hormone-
like biochemical compounds know as eicosanoids. These substances aid in virtually every
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body activity, from vital organ functioning down to intracellular processes, including helping
to regulate inflammation and blood pressure as well as heart, gastrointestinal, and kidney
functions.
As such, their use can be preventative and therapeutic for various conditions including
some types of cancer, and cardiovascular, neurological and musculoskeletal diseases.
Because of their anti-inflammatory properties they are effective anti-aging nutrients. As
well, they can be used as an aid for weight loss and for improving body composition.
Omega 3 Fatty Acids
Omega-3 fatty acids are long chain polyunsaturated fatty acids that have biological
functions because they are converted to a number of active substances in the body such
as prostaglandins and leukotrienes and are involved in a number of metabolic events.
Linolenic acid is an essential fatty acid since it cannot be synthesized in the body. Other
omega-3 fatty acids can, however, be synthesized from linolenic acid.
Omega 3 and omega 6 fatty acids are precursors for hormones and determine the
composition of our cell membranes, influencing the production of pro- and anti-
inflammatory substances.12
Omega-3 fatty acids, found in fish oils (mainly EPA and DHA) and flaxseed oil, are useful
in a wide variety of conditions:13 They have been shown to:
1. Reduce oxidant stress14 (oxidative stress or free radical damage is a factor of
importance in the development of inflammatory events).
2. Suppress the production of pro-inflammatory compounds in the body and
therefore influence inflammatory conditions such as arthritis, diabetes,
inflammatory bowel disease, cancer, autoimmune disorders, and
aging.15,16,17,18,19,20,21,22,23, 24,25,26,27 28,29,30
3. Improve serum lipids and provide cardiovascular protection,31,32,33,34,35
4. Provide protection against stress,36 cognitive aging37,38 and depression.39
5. Blood pressure, clotting, immune response, insulin resistance, and
triglyceride levels are all positively affected by the omega-3s in EFA+.40
6. May be effective in the prevention of coronary heart disease,41,42 and
headaches.43
7. Aid in weight and fat loss, especially when combined with CLA (see below).
8. Be positively associated with peak bone density in young men.44
While it’s generally known that EFAs are good for the cardiovascular system and for
arthritis, it’s not as well known the EFAs can affect mental health. In fact, a deficiency in
EFAs or too little omega 3 fatty acids can lead to decreased mental health, depression and
even aggressive tendencies.
EFAs have been shown to assist in treating depression and other mental health conditions.
Low levels of omega-3 EFAs are common in depression. In one 2002 study, researchers
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found that treatment with EPA improved outcomes in patients with persistent depression.45
Another study found that EPA may prove an effective add-on treatment in schizophrenia.46
There is even some evidence that the decrease in omega 3 consumption may be
responsible for increasing homicide rates.47
Part of omega-3's effectiveness in treating brain disorders and the reason why lack of
omega 3’s results in some mental aberrations may be linked to its role in
neurotransmission and brain development. DHA in particular is crucial for proper brain
function, and pregnant women are advised to consume adequate levels for fetal brain
development.
A recent paper published in 2005 concluded:48
There is no doubt that cerebral lipids, and EFA-derived LC-PUFAs in particular, have
significant direct and indirect actions on cerebral function. Not only does the lipid
composition of neural membranes affect the function of their embedded proteins, but also
many LC-PUFAs are converted to neurally active substances.
There is good evidence that psychiatric illness is associated with depletion of EFAs and,
crucially, that supplementation can result in clinical amelioration. As well as challenging
traditional views of aetiology and therapeutics in psychiatry, the clinical trial data may
herald a simple, safe and effective adjunct to our standard treatments for many disabling
conditions.
EFAs and Body Composition and Exercise Performance
Besides all the health benefits above, the EFAs may also be useful in improving body
composition and exercise performance, They have been shown to affect insulin sensitivity
and growth hormone secretion, have anti-catabolic effects, both enhance weight loss and
help keep the weight off, and influence exercise performance.
Fish oil may, through perhaps more than one mechanism, have anti-catabolic properties.
By extrapolating from burn injury studies, there is the possibility of modifying the catabolic
processes secondary to training through the use of fish oil.49,50 There is the possibility that
fish oil may modulate PGE sub 2-mediated muscle proteolysis.
Studies have shown that the mechanism of interleukin-1 (IL-1)-induced muscle proteolysis
involves PGE sub 2 synthesis.51 Thus it is likely that omega-3 fatty acids from fish oil
competitively inhibit the PGE sub 2 synthesis,52,53 resulting in less muscle proteolysis.
Furthermore, it has been shown that fish oil feeding in healthy volunteers can reduce the in
vitro production of IL-1 and tumor necrosis factor by macrophages.54 Thus, the reduction of
IL-1 level may represent another mechanism by which fish oil moderates muscle
proteolysis.
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Omega-3 fatty acids may increase growth hormone secretion since they are involved in the
formation of prostaglandin E1, which in turn is involved in GH release.55 As well, to add to
the possible benefits in improving exercise performance and body composition,
Several studies have shown that fish oil increases insulin sensitivity, the breakdown of
body fat and the use of fat as a primary energy source. As such, besides decreasing
inflammation and increasing cardiovascular health, they also provide substantial weight
and fat loss benefits.
LNA, EPA, and DHA can enhance lipolysis (body fat breakdown)56,57 and decrease
lipogenesis (body fat formation).58,59 The combined breakdown of stored body fat and
decrease in additional body fat can have very positive results for the dieter. You actually
end up making less and breaking down more body fat when using these oils.
As well, a recent study found that GLA reduced weight regain in humans following major
weight loss, suggesting a role for essential fatty acids in fuel partitioning in humans prone
to obesity.60
A recent study61 in horses found that n-3 fatty acids laced vitamin supplement induced
changes in membrane composition, which modulated the decrease in erythrocyte
membrane fluidity seen during exercise, and therefore found to be potentially beneficial in
exercising horses.
Gamma linolenic acid
Gamma linolenic acid (GLA) is important for health and has suppressive effects on both
acute and chronic inflammation, and effects on decreasing the response to anxiety and
stress.62,63,64,65,66,67,68 It also works synergistically with some of the essential fatty acids to
decrease inflammation and stress responses.69,70,71
GLA is needed by the body for the manufacture of certain hormone-like substances called
Prostaglandins. These substances have beneficial regulatory effects on the immune
system, circulation and the menstrual cycle. Their purpose is to help control and regulate
cell growth and to maintain hormonal balance. Also helps to maintain healthy skin.
The use of EPA with GLA (as in EFA+) decreases some of the possible inflammatory
effects of using GLA supplements. That’s because GLA can be a precursor for arachidonic
acid (AA, a “bad” type of prostaglandin that increases platelet aggregation and
inflammation) and the addition of EPA reduces AA accumulation in some cells and tissues
secondary to GLA supplementation.72
A recent study found that GLA reduced weight regain in humans following major weight
loss, suggesting a role for essential fatty acids in fuel partitioning in humans prone to
obesity.73
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Conjugated Linoleic Acid (CLA)
Conjugated Linoleic Acid (CLA), while
not an essential fatty acid, has
significant effects on body composition.
It’s a mixture of isomers of linoleic acid,
which is found preferentially in dairy
products, meat, and in cheese, milks
and yogurt that have undergone heat
treatment.
CLA has been shown to have properties
above and beyond those of linoleic acid.
It has shown potential as a powerful
anticarcinogen74,75 and exhibits potent
antioxidant activity.76 Studies have suggested that CLA may be cytotoxic to human cancer
cells in vivo.77
CLA has a wide range of biological effects.78 It has potent antioxidant activity and has
shown potential as an anticarcinogen. CLA has been shown to have significant anti-
inflammatory properties79 and to inhibit inflammatory mediators such as PGE2, IL-6, and
TNF-alpha,80,81 and also acts as a COX-2 inhibitor.82,83
Studies in animals and humans indicate that CLA supplementation decreases body fat and
increases lean muscle mass. The increase in lean muscle mass is most pronounced in
individuals who are exercising regularly.
CLA appears to reduce the ability of fat cells to take up fats from the bloodstream; it also
inhibits the formation of new fat cells. CLA also helps cells burn fat at a higher rate, while
fueling and preserving muscle, leading to a reduction in fat and an increase in lean muscle
mass.
Numerous physiological effects in relation to body-weight control have been attributed to
CLA in animals. In different animal models, CLA has been shown to reduce body fat and to
increase lean body mass.84,85 But CLA has marked effects in humans as well and has
been found to decrease body fat mass and support muscle mass in overweight humans.
86,87,88,89
For example, a study published in the International Journal of Obesity found that those
who were given CLA for a four week period had significant decreases in abdominal fat.90
As well, a recent study concluded that long term CLA supplementation not only helps to
decrease body fat but also helps to maintain weight loss in the long term. A recent long
term study found that a mixture of the two CLA isomers significantly lowered body fat mass
in overweight humans at both 1 and 2 years.9192 It likely does this by affecting various
enzymes involved in lipid formation and to a lesser extent enhancing fat breakdown.93, 94, 95
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As well, CLA seems to have significant effects on weight regain, as it reduces fat uptake
into adipocytes by decreasing the formation of fat and but not affecting fat breakdown. It
likely does this by affecting various enzymes involved in lipid formation rather than
enhancing fat breakdown, known as lipolysis.96,97,98
Thus there is an overall increase in fat breakdown since the two processes are usually in
dynamic equilibrium with as much fat being produced as is broken down. Decreasing fat
formation changes the dynamics to one of overall increased fat breakdown and
subsequently a decrease in overall body fat.
Of equal importance, for those wishing to maximize lean body mass, is the possible anti-
catabolic effects of CLA.99,100
The most recent study in a series of studies of the effects of CLA confirmed and expanded
on the findings of the previous studies: CLA reduces body fat mass in specific regions of
the body, especially the abdominal area in both men and women, and maintains or
increases lean body mass.101
Adding to CLA’s effects on body composition, another recent study found that CLA
supplementation even increased fat oxidation and energy expenditure during sleep.102
Conclusion
The bottom line is that the essential fatty acids, and some non essential fatty acids such as
CLA, have significant effects on body composition, training, recovery, and can also
increase overall health and well being.
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EFA+
EFA+
Version
Version
Version
III
III
Essential Fatty Acids – Plus
EFA+ is an enhanced ess ential fatty acid
formula containing optimum levels of the
essential fatty acids as well as several
other additive and synergistic ingredients.
The complex, scientifically based
formulation provides much more than
other essential fatty acid products.
Be side s the es sential fatty acids, EFA+
also contains numerous other ingredients
that provide other benefits including
weight and fat los s, and improvements in
body composition.
WWW
WWW
.
.
MD
MD
EFA
EFA
PLUS
PLUS
.
.
COM
COM
EFA+ An Essential Fatty Acid Formulat
EFA+ An Essential Fatty Acid Formulat
i
i
on
on
, and
, and
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More
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www.metabolicdiet.com Page 9 of 21
Ingredients in EFA+
I formulated EFA+ to be a balanced combination of essential fatty acids (EFAs), and other
ingredients that work additively and synergistically to maximize the beneficial effects of the
essential fatty acids on health, inflammation and body composition.
As far as the essential fatty acids, EFA+ consists largely of the omega 3 family of essential
fatty acids, so as to even out the omega 6/omega 3 ratio to one that is closer to the ratio
that man has consumed for most of his existence. Bringing the ratio into line enhances
cellular function, decreases inflammation, and improves body composition, health and
well-being.
EFA+ contains pharmaceutical grade fish oil with higher levels of EPA and DHA. It’s
important to include these longer carbon chain omega 3s for two reasons. First of all as
first of all the formation of EPA and DHA from ALA is limited and secondly while fish is one
method of getting these oils, most sources recommend that fish consumption be limited to
two to three servings weekly because so many fish are tainted with mercury, PCBs and
other contaminants.
High-quality, purified fish oil, as found in EFA+ are contaminant free and present a viable
alternative to frequent consumption of fish.
But there are many more active ingredients in EFA+ that enhance its effects. For example,
the co-factors zinc, magnesium, Vitamins. C, B3 and B6 must be present for the benefits of
the essential fatty acids to be realized.
Some of the added vitamins and minerals, besides optimizing the use of the essential fatty
acids, also have other beneficial properties related to the effects of the essential fatty
acids. For example vitamins B3 and B6 have significant antioxidant properties and also
beneficial effects on serum cholesterol and triglycerides. Magnesium and zinc are also
heart friendly and have beneficial effects on the immune, cardiovascular and
neuromuscular systems.
EFA+ also contains several lipotropic factors and other ingredients, including conjugated
linoleic acid, L-carnitine, methionine, serine, choline and inositol that optimize the
utilization, transport and metabolism of fat, working to decrease body fat, normalize serum
lipids including cholesterol, enhance energy levels, and fight inflammation in the body.
The antioxidants present in EFA+ serve several purposes. First of all they help preserve
the natural state of the EFAs by protecting them from oxidative damage and becoming
rancid while in the capsule so that what you get are all the good effects that EFA+ has to
offer and none of the bad.
That’s one of the reasons why EFA+ combines several antioxidants, including vitamin A,
vitamin C, vitamin E, conjugated linoleic acid (CLA), alpha lipoic acid, and
glutathione, with fish oil and other sources of essential fatty acids.103, 104
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As well, the association of antioxidants with the omega-3 essential fatty acids, such as the
fish oil and other ingredients found in EFA+, act in concert to enhance the beneficial
effects of the essential fatty acids on inflammation and on the immune and cardiovascular
systems.105,106
On top of all this the antioxidants counteract some of the adverse effects that these
essential fatty acids might have. For example, although it’s been shown that fish oil
increases oxidation of LDL cholesterol, the “bad” cholesterol in the body that’s been
implicated in cardiovascular disease, it has also been shown that the use of antioxidants
counteracts this negative effect of fish oil.107,108
Omega-3, 6 and 9 Oils
EFA+ contains omega 3, 6 and 9 fatty acids, including EPA and DHA, the longer chain
fatty acids found mostly in fish oil. The plant based oils are mechanically pressed under
low heat, light and oxygen-free environment ensuring the extremely high quality of the
formula. As well, pharmaceutical grade fish oil is used in the formulation. The formula is
mercury free and free of harmful trans fatty acids.
The emphasis in EFA+ is on the omega 3 essential fatty acids and on GLA, an important
omega 6 fatty acid, but EFA+ also contains omega 6 linoleic acid as part of flax seed oil
and oleic acid, an omega-9 fatty acid, which is also present as a natural constituent of flax
seed oil.
Conjugated Linoleic Acid and Gamma linolenic acid (GLA)
Both CLA and GLA have health and body composition effects and are included in EFA+.
The use of EPA with GLA (as in EFA+) decreases some of the possible inflammatory
effects of using GLA supplements. That’s because GLA can be a precursor for arachidonic
acid (AA, a “bad” type of prostaglandin that increases platelet aggregation and
inflammation) and the addition of EPA reduces AA accumulation in some cells and tissues
secondary to GLA supplementation.109
Choline, Phosphatidylcholine, Phosphatidylserine, Serine and
Policosanol
Choline, phosphatidylcholine, phosphatidylserine, and serine are involved in phospholipid
metabolism and augment the effects of the EFAs on cell wall structure and integrity, as
well as molecular signaling properties.110 These ingredients are needed for cell membrane
integrity and to facilitate the movement of signaling compounds between cells and the
movement of fats in and out of cells.111 They have significant effects on nerve cell
membranes, and are required for nerve growth and function.112
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Policosanols are a blend of compounds isolated from natural plant waxes. Policosanol
contains several long chain fatty alcohols, including octacosanol, hexacosanol and
triacontanol. Animal and in-vitro research has shown that these compounds may support
the cardiovascular system and inhibit lipid peroxidation as well as support macrophage
activity.
Policosanol helps lower cholesterol levels by slowing the body's own production of
cholesterol in the liver, as well as reducing the risk of blood clots and enhancing
circulation. Some studies have shown that policosanol, like some EFAs can significantly
reduce both total cholesterol and LDL (bad) cholesterol.113,114,115,116
As well, policosanol, due mainly to the abundant octacosanol, has several other beneficial
effects including increasing muscle endurance, increasing the efficiency of blood flow, and
helping to stabilize cell membranes.117,118,119 Octacosanol may also be useful for
improving athletic performance as suggested by some studies.120,121
Alpha Lipoic Acid
Alpha lipoic acid (ALA) has potent antioxidant properties intrinsically and secondary to its
ability to increase levels of intra-cellular glutathione, and its ability to recycle other
antioxidants such as vitamin C, vitamin E and glutathione.122,123,124,125,126 ALA and
glutathione have been shown to have significant effects in decreasing mercury toxicity in
the body.127
Alpha lipoic acid also has significant anti-inflammatory properties and has been shown to
inhibit IL-1, a proinflammatory cytokine and also inhibit the synthesis of PGE2 by inhibiting
COX-2 activity.
ALA’s ability to decrease both the pro-inflammatory cytokines128129 and secondary cortisol
elevations, along with similar effects from CLA, simulates the anti-inflammatory effects of
the present class of NSAIDS such as Celebrex, Advil, Aleve, etc. As well, EFA+ contains
fish oil with substantial amounts of DHA and EPA, which has also been shown to have
effects similar to the anti-inflammatory prescription and OTC drugs.130
ALA has been shown to inhibit cross-linking among proteins, a process that contributes to
the aging process in the body and especially in collagen-heavy tissues such as skin.
Alpha-lipoic acid activates a collagen-regulating factor known as AP-1 that turns on
enzymes that digest glycation-damaged collagen and thus make the skin more supple and
youthful looking.
Besides having potent antioxidant and anti-inflammatory effects, ALA also has significant
anabolic effects secondary to its beneficial effects on insulin sensitivity and growth
hormone and IGF-I secretion, all factors involved in maintaining, repairing and
regenerating musculoskeletal tissues.131,132,133,134
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ALA is also useful in reversing mitochondrial dysfunction, especially in aging
mitochondria.135,136
The many benefits of EFA+ include:
• Effects on body composition – improved metabolism, enhanced weight and fat loss
and retention of muscle mass.
• Increased insulin sensitivity.
• Decreased inflammation in the body thus providing cardiovascular, neural,
musculoskeletal, and hormonal (including testosterone and growth hormone) health
benefits.
• Improved serum lipid (cholesterol, triglycerides) profile including cholesterol levels.
• Improved immune system functioning.
• Improved mental health.
• Anti-aging effects.
Bottom Line
The bottom line is that EFA+ is a multi-purpose formulation designed to provide the full
gamut of all the essential fatty acids and supporting ingredients that are so important in
optimizing your metabolism, enhancing weight loss, body composition, and the anabolic
and fat burning effects of exercise, boosting your immune system and decreasing counter
productive inflammation in the body secondary to exercise, aging and various diseases.
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EFA+ Nutritional Panel
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